3687609 has 4 divisors (see below), whose sum is σ = 4916816. Its totient is φ = 2458404.

The previous prime is 3687583. The next prime is 3687631. The reversal of 3687609 is 9067863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3687609 - 2⁹ = 3687097 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3687209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614599 + ... + 614604.

It is an arithmetic number, because the mean of its divisors is an integer number (1229204).

Almost surely, 2^3687609 is an apocalyptic number.

It is an amenable number.

3687609 is a deficient number, since it is larger than the sum of its proper divisors (1229207).

3687609 is a wasteful number, since it uses less digits than its factorization.

3687609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229206.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3687609 is about 1920.3148179400. The cubic root of 3687609 is about 154.4951873743.

The spelling of 3687609 in words is "three million, six hundred eighty-seven thousand, six hundred nine".